I've started on this contest and decided its due time to start giving updates.
I had to spend a decent amount of time becoming familiar with the project and Enlighten's workflow. It has been illuminating and I have definitely learned much more about its realtime GI capabilities. A couple links that have been of use are:
Alex Lovett's blog(creator of the original scene):http://www.shadowood.uk/Store/Store/
Unity blog post on Enlighten that has some helpful hints on how your uvs are handled for a realtime bake: http://blogs.unity3d.com/2015/11/05/awesome-realtime-gi-on-desktops-and-consoles/
I think a large part of changing the
light will come from changing the original materials. Here is my work
in progress so far, mainly working with changing the normals.
As for the final look I'm largely inspired by various science fiction forms. I'd like to maintain the scene's function as a courtyard, but in a futuristic construction. Here are some of my references from well known movies.
Currently I'm trying to establish the base forms through the normal map and replacing the original materials